Question 348028
one number is 3 more than another. twice the larger number minus the smaller is 15. what are the two numbers?
 
twice the larger is 6 plus twice the smaller, 
 
hence twice the larger minus the smaller is 6 plus the smaller, equals fifteen,
 
the smaller is then fifteen minus six equals nine,
the larger is then three plus nine, equals twelve.
 
Verification : twelve equals 3 plus 9, and twice twelve, twenty-four, minus nine, equals fifteen. (fifteen plus nine equals twenty-four).